Known bugs:
It's a beta, and yes we meant that, not like Google but like software engineers - expect glitches and updates. The main thing is that the viewer will not work, as we're in the middle of changing how the live coordinates get to the viewer. Other then that, visit our nVidia beta Forum to see what's happening.

Update:
You have to install new drivers for your GPU to enable CUDA. I'm currently usingCUDA Downloads - NVIDIA
those. On the F@H Forums they were recommending 175.33, but on Vista 32bit I couldn't get those to install.
Next, YOU HAVE TO HAVE 1 CPU CORE TO RUN GPU2. So to everyone running SMP's, and maxing out all of your CPU cores, you need to go into the advanced options and edit it to only use the proper amount of cores(In console, use

Code:

fah.exe -config

then go into advanced options from there)

Once you have the proper driver installed, and the proper cores set, then the GPU client should run fine.
FahMon is reporting my OC'd 9600GT is getting 2490.35 PPD.